Microcontroller-based automated mango sorter

Date

10-2005

Degree

Bachelor of Science in Applied Physics

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Alvin Joseph J. Faustino

Abstract

A microcontroller-teased instrument that measures the weight of Mangoes (Magnifera indica L.) and sort in three different categories was implemented using an ATMEGA161. microcontroller. The objective of the study was to design and implement an instrument that used a load cell as a weight sensor and actuators to transfer the mangoes from a platform to a conveyor belt and places them in their respective categories. The study was composed of five main phases namely software development, mechanical hardware design and construction, controller design and construction, sensor calibration, and data gathering and testing. On the software part, the weight in the different categories can be set or used the standard weight classifications of mangoes. All actuators in the sorting instrument were controlled by the microcontroller unit (MCU). An LCD and four buttons were placed for user interface. On the hardware part, a load cell attached to the platform was used to measure the weight of the mangoes. Then a pushing mechanism powered by a DC motor was activated to transport the mangoes from the platform to the conveyor belt powered by an AC speed control motor. Two solenoid motors attached with flippers were used to sort mangoes into their respective category. The calibration of the ADC and the sensor was done using Set of metal weights and a software program. The microcontroller-based automated mango sorter was tested using thirty mangoes and successfully sorted 289 times out of 300 trials thus giving the sorting machine 96.33% success rate.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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